class out
{
    public int month1=1;
    public int month2=2;
    class In
    {
        public int month3=3;
        public int month4=4;
        public void dayin()
        {
            System.out.println(month1);
            System.out.println(month2);
            System.out.println(month3);
            System.out.println(month4);
        }


    }



}




public class text {
    public static void main(String[] args) {
        out dui=new out();
        dui.In in=dui.new In();
        in.dayin();


    }




}
